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Aristotle was seen to spontaneous generation and animal classification. He did experiments on spontaneous generation and dissected animals for animal classification.
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Zacharias Jansen was the one to create the first microscope and the first true compound microscope.
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Robert Hooke was the one to describe biological organisms, and created the term.
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Anton van Leeuwenhoek was the first to observe bacteria and protozoa, he also studied small animals. His research led to the doctrine of spontaneous generation. His observations led to bacteriology and protozoology.
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Lorenz Oken came up with a new system of animal classification that basicly demonstrated the path of evolution.
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Van Helmont was a man of his age that accepted spontaneous generation and did experiments with it.
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Robert Brown was the first to recognize the nucleus in cells and was the one to create the term.
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Theodar Schwann discovered the cells in the perpheral nervous system, studied pepsin, the organic nature of yeast, and invented the term metabolism.
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Matthias Schleiden stated that the different parts of the plant organism are composed of different cells.
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Rudolph Virchow was the first recognize leukemia cells. Rudolph also plagiarized the work of Robert Remak that stated the origin of cells was the division of preexisting cells.
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Pasteur came up with the process to prevent milk and wine from making people sick, which is called pasteurization. It was based off his work in germ theory. He had proven spontaneous generation false and replaced it biogenesis which states that all living things came from preexisting life. Biogenesis is the basis or Germ Theory which, which is not originally his idea.
